image help

Here an image I processed today. I am not sure why it fogged on the side. also some of the image appears to turn to a more of a light tan. In the image on here I know i missed a bit with my pouring. This was the only one I poured so poorly but it had the best exposure out of the images i made. I have my ideas as to why but I am not sure maybe someone can give me their advice or ideas.